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GLP-1 drugs. An honest guide.

Roughly one in eight US adults has tried one. The efficacy is real, the side effects are real, and almost nobody selling them wants to talk about the year after you stop. We read the literature on every major question and wrote it down — not anti-pharma, not pro-pharma.

8

Cornerstone essays

2/3

Regain at 1yr off-drug

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Cost to read all of it

01Read this first

Three things the advert leaves out

Everything in this cluster is written for one situation: you are on a GLP-1, considering one, or trying to come off one, and you want the research rather than a sales page. Every claim here is sourced to the trial or review it came from.

Important

If you are currently on a GLP-1, coordinate every change — dose, timing, stopping — with your prescribing physician. These essays are educational scaffolding for that conversation. They are not medical advice and they do not replace the clinician who knows your history.

Trial-grade

The efficacy is real

Semaglutide and tirzepatide produced the largest average weight change of any non-surgical intervention in randomised trials. We do not pretend otherwise.

Two-thirds

The exit is the problem

In the STEP 1 extension, about two-thirds of lost weight had returned a year after stopping, and cardiometabolic markers drifted back toward baseline.

25–40%

Some of it is muscle

Body-composition substudies put a quarter to two-fifths of the weight lost in the lean-mass column when protein and resistance training are not deliberately defended.

02The library

8 cornerstone essays

Filter by where you are in the process. Every essay carries its citations and a review date.

Showing 8 of 8 essays

03The part nobody sells

The drug is the easy half. The exit is the work.

Pharmacological appetite suppression is doing a job. Take it away without putting something structural in its place and the job simply stops being done. That is the whole mechanism behind the regain data.

While you are on it

Appetite is handled for you

  • Gastric emptying slows and satiety signalling is amplified
  • Portions shrink without a decision being made
  • Weight comes down; several cardiometabolic markers improve with it
  • Lean mass quietly leaves too, unless it is actively defended

The week you stop

Something has to take over

  • A protein floor high enough to protect what muscle you still have
  • Resistance training two to three times a week, progressively loaded
  • Ultra-processed food removed from the house, not just from the plan
  • A sleep window defended like an appointment — appetite depends on it
  • A taper agreed with your prescriber, never a cold stop
Build my off-ramp
04Straight answers

GLP-1 questions

What people actually ask us

They work, and the effect size in the registration trials is larger than anything else available short of bariatric surgery. Semaglutide 2.4 mg and tirzepatide 15 mg both produced double-digit average percentage weight change over roughly 68–72 weeks against a low-single-digit placebo response.

The honest caveat is that these are group averages from supervised trials with intensive support, not a forecast for any one person. Response varies widely, a minority are non-responders, and the numbers describe time on the drug — not what happens afterwards.

The honest comparison
Semaglutide 2.4 mg (STEP 1)15%

Mean total body weight change at 68 weeks

Tirzepatide 15 mg (SURMOUNT-1)21%

Mean total body weight change at 72 weeks

Placebo arms3%

Same trials, same lifestyle support

Trial figures are group averages from published randomised trials, cited in the essays above. They describe study populations, not you — individual response varies and no outcome is guaranteed.

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Coming off, or thinking about it?

The Transition Planner turns this cluster into a twelve-week structure built around your medication and your starting point — to take to your prescriber, not instead of them.

Educational only, not medical advice. Nothing here is a prescription, a diagnosis, or a recommendation to start, change or stop any medication. Consult your physician before major dietary changes or altering prescribed medication. These statements have not been evaluated by the Food and Drug Administration. Individual results vary; no outcome is guaranteed.